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Effects of Tin Addition on Mechanical Properties and Electroconductive of Si3N4 Matrix Materials

SUN Xingwei, LIU Xuejian, HUANG Liping

（Shanghai Institute of Ceramics‚Chinese Academy of Science）

Abstract: The Effects of TiN addition on mechanical properties and electroconductive of Si3N4matrix materials was studied．It shows that TiN particle can toughen and reinforce material‚During sintering process‚TiN particle react with Si3N4 grain．When TiN particle addition reached the certain rate．The electric conductive network yielded．In the Si3N4 composite‚so the Si3N4 composite have electroconductive． 

Keywords: second phase particle‚toughen and reinforce‚electroconductive


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